<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        body{
            font-size: 10px;
            color: red;
            color: grey;
        }
        ul{
            list-style: none;
        }
    </style>
</head>
<body>
<div>div</div>
<p>p</p>
<span>span</span>
<h1>标题标签</h1>
<a href="#">链接</a>
<ul>
    <li>1</li>
    <li>2</li>
    <li>3</li>
</ul>
</body>
</html>